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油压张力装配技术是用于无键过盈配合结构组装和拆卸的一种现代装配技术。其原理（参见图正）是利用高压油在配合面之间产生油楔，形成油膜后再施以轴向力，使配合件有轴向位移，达到图样要求的准确位置，完成可靠的过盈联接装配。若轴向施力与装入方向相反，即为拆卸。锥过盈?
Hydraulic tension assembly technology is a modern assembly technique for assembly and disassembly of keyless interference fit structures. The principle (see Figure) is the use of high-pressure oil in the mating surface between the oil wedge, the formation of oil film and then applied axial force, so that the axial displacement of the fitting, to achieve the desired position of the pattern to complete the reliable interference Coupling assembly. If the axial force and the loading direction is opposite, it is disassembled. Cone interference?